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Water-Year Summary for Site 01209500

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  • Water-Year Summary reports summarize a year of hydrologic data in a printer-friendly format.
  • For water years 2014 onward, choose a water year and parameter and an on-demand Water-Year Summary report will be generated.
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Available Parameters
00060 Discharge(Mean)  

Water year 2022: 2021-10-01 to 2022-09-30

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USGS Water-Year Summary 2022
LOCATION - Lat 41°10'14.63", long 73°21'53.34" referenced to North American Datum of 1983, Fairfield County, CT, Hydrologic Unit 01100006, on left bank on Ford Road, 400 ft downstream from West Branch, 600 ft downstream from Aspetuck River, 2 mi north of Westport, Fairfield County, 5.5 mi upstream from mouth.
DRAINAGE AREA - 79.8 mi².
PERIOD OF RECORD - October 1933 to September 1967; July 2009 to current year.
GAGE - Water-stage recorder and crest-stage gage. Datum of gage is 18.16 ft. above National Geodetic Vertical Datum of 1929. Satellite telemetry at station.

Flow regulated by storage and diversion at Saugatuck Reservoir by diversion from basin for water supply of Norwalk, and by Aspetuck Reservoir on Aspetuck River. Aquarion Water Co. diverts an indeterminable amount of water from Aspetuck Reservoir.

Water Years 2014-2020: Records good except for periods of estimated discharges, which are fair.

EXTREMES FOR PERIOD OF RECORD - The maximum peak flow of 14,800 ft³/s was obtained from the rating curve extended above 2,400 ft³/s on basis of computation of peak flow over dam at gage height 10.28 ft. and contracted-opening measurement of peak flow. The maximum stage of 15.93 ft. was from high-water marks in gage house.